Mold-dimensioning mechanism for type-machines.



No. 770,253. PATENTED SEPT. 20, 1904.

' J. s. BANOROFT.

MOLD DIMENSIONING MECHANISM FOR TYPE MACHINES.

APPLICATIONFILED JAN. 30, 1994. H0 MODEL. s SHEETS-$113117. 1.

WITNESSES: [J/VI/ENTOR' I By W Q4 4% Attorney:

PATENTED SEPT. 20, 1904.

J. S. BANOROPT.

MOLD DIMBNSIONING MECHANISM FOR TYPE MACHINES.

APPLICATION FILED JAN. 30, 1904.

3 SHEETS-SHEET 2.

N0 MODEL.

[NVE/VTOR [g Attorneys No. 770,253. 7 PATENTED SEPT. 20, 1904.

I. s. BANOROFT. MOLD DIMENSIONING MECHANISM FOR TYPE MACHINES.

APPLICATION FILED JAILBO, 1904.

HQ MODEL.

3 SHEETS-SHEET a.

WITNESS/i5.- .[NVENTOR W Jrwmwawfi L; Aftomey:

UNITED STATES JOHN SELLERS BANCROFT, OF PHILADELPHIA, PENNSYLVANIA,ASSIGNOR Patented September 20, 1904.

TO LANSTON. MONOTYPE MACHINE COMPANY, OF PHILADELPHIA, PENNSYLVANIA, ACORPORATION OF VIRGINIA.

MOLD-DIMENSIONING MECHANISM FOR TYPE-MACHINES.

SPECIFICATION forming part of Letters Patent No. 770,253, datedSeptember 20, 1904.

Application file l January 30,1904. Serial No. 191,382. (No model.)

To all whom, it nuty concern.-

Be it known that I, JOHN SELLERs BAN- CROFT, of Philadelphia, in thecounty of Philadelphia, State of Pennsylvania, have invented certain newand useful Improvements in Mold- Dimensioning Mechanism forType-Machines; and I do hereby declare the following to-be a full,clear, and exact description of the same, reference being had to theaccompanying 1o drawings, forming a part of this specification,

and the figures of reference marked thereon. This invention relates toimprovements in or upon the class of type-casting machines representedin Patent No. 625,998, wherein I 5 the dimensioning of the mold iseffected through the medium of the die-case-centering mechanism and themaximum number of sizes is limited to the number of rows or columns ofmatrices contained in the die-case; and it has for its principal objectto render the dimensioning of the mold independent of the movements ofthe die-case and of the position of the matrices therein, so that alarger number of sizes or a more extended range of ad- 2 5 justment maybe provided and the matrices arranged in any desired order withoutreference to their space value.

To this end the invention consists in providing the mold-adjustingdevices with a con- 3c trol or adjusting system separate from andindependent of the die-case-centering mechanism and under the directcontrol of the recordstrip, the latter being provided with a specialdimensioning perforation or signal in addi- 3 5 tion to thedie-case-locating perforations or signal, so that the number of sizesand their relative dimensions are dependent solely upon the capacity ofthe mold-adjusting devices and is not limited or otherwise controlled by4 the number or position of the matrices in the die-case, all ashereinafter more fully described, the novel features being pointed outin the claims.

In the accompanying drawings, illustrating a preferred form ofembodiment, Figure 1 is a top plan view of a casting-machine, showingthe application of the mold-adjusting mechanism thereto. Fig. 2 is a topplan view of the attachment on an enlarged scale. Fig. 3 is an endelevation, partly in section, to show the arrangement of the stop-pinsor primary controller. Fig. 4 is an end elevation, partly in section, toshow the construction of the spring-box. Fig. 5 is a sectional viewillustrating the manner of supporting the jaws for shifting the normalwedge. Fig. 6 is a perspective view of the wedge-shifting jaws.

Like numerals in the several figures designate corresponding parts.

The type-casting machine illustrated and to which the present embodimentof the invention is specially adapted, other forms being admissible, isthat of Patent N 0. 625,998, to which reference may be had for a moredetailed description of its construction and operation, the generalarrangement of its principal elements being shown in Fig. 1.

It is deemed sufficientfor present purposes to state that in the priormachine the normal Wedge 132 and the justification-wedges 14:1 and 142for varying the dimensions of the moldcavity were shifted and theirpositions determined byoppositely-moving jaws 136, attached to andmoving in unison with the jaws of the secondary controlling orpositioning mechanism. Hence the permissible number of adjustments waslimited to the number of rows of matrices in the diecasec'. 0.,fifteen-and the unit of adjustment was determined or limited by theinterval between the centers of adjacent matrices as measured upon thewedges or other adjusting media.

According to the present scheme the movements of adjustment instead ofbeing derived from the diecasecentering mechanism, as heretofore, areeffected through a separate mechanism controlled directly by therecordstrip and operating independently thereof to shift themold-adjusting devices to any one of a series of positions representingdifferent degrees of adjustment, and in the adaptation shown with a viewto insuring complete harmony of action as between the correlatedmechanisms this new adjusting and control mechanism is connected to thesame jaws 136 which heretofore effected the shift of the wedges, towhich end said jaws are disconnected from those of the secondaryposition-.

ing mechanism and provided with independent guides, as seen in Fig. 5.This separation of the jaws 136 from the adjusting mechanism of thedie-case is designed, primarily, to remove the normal mold-adjustingdevices, such as the normal wedge, from the direct control of saiddie-case-adjusting devices,so that the dimensioning of the mold may beindependently effected, and the same result, might be obtained by simplyremoving said normal mold-adjusting devices from the sphere of action ofthe jaws of the secondary positioning mechanism, as by removing theprojection on the normal wedge from between the jaws and providing aduplicate set of jaws 136 in operative relation to the normal wedge orother normal mold-adjusting devices, in which case one set of jaws wouldoperate, as heretofore, upon the justification devices, while the otherset acted upon the normal mold-dimensioning devices.

Aside from the fact that the jaws 136, as herein shown, are independentof the secondary positioning mechanism of the die-case, hence aresubject to independent control, their action with relation to the wedges132, 141, and 142 is in no wise changed or affected.

The new adjustment-controlling mechanism is supported upon a frame 1,either formed integral with or attached to the main frame in rear of thewedges. Upon this frame is erected a primary controller in the form of aplurality of separately-movable pins 2, serially disposed in fixedrelation, a primary positioning or gaging mechanism in the form ofoppositely-moving jaws 3, the latter cooperating with any one of thepins 2 when projected to determine the closed position, a secondarycontroller or shiftable gage in the form of a stop-bar 4, the latteracted upon by the jaws 3 to bring it to the position designated by pin2, and a secondary positioning or gaging mechanism in the form ofoppositely-moving jaws 5, alternating as to direction of movement withjaws 3 and contacting on stop-bar4to determine their closed position,each of said jaws 5 being connected by a translating device, such as rod6, with one, of the wedge-shifting jaws 136.

Each pin 2 works through a guide-plate 7 and is provided with aretracting-spring 8 and a piston 9, the latter working in a cylinder 10,formed in block 11, secured to frame 1. A pipe 12 leads from eachcylinder 10 to one of the ports in the paper-feed mechanism, so thateach pin is under the control of perforations located in the line of itsinlet-port.

The jaws 3 and 5 are guided to reciprocate above the series of pins 2upon parallel rods 13, supported in brackets 14 at the opposite ends ofblock 11, said brackets forming stops for the jaws during their openingmotions.

The devices for communicating motion to the jaws 3 comprise a pair oflevers 14, each pivotally connected at one end to one of the jaws andhaving their opposite ends joined together by an adjustable link 15. thelevers 14 is pivotally attached by a link 16 to the frame 1, and theother is in like manner coupled by a link 17 with an actuating-lever 18,pivoted on the frame. In like manner the jaws 5 are each pivotallyconnected to one end of a pair of levers 19, the opposite ends beingcoupled together by an adjustable link 20, and one lever 19 is connectedby link 2]. to the frame and the other by a link 22 to. theactuating-lever 18. By this arrangement of parts the motion of lever 18in either direction will cause the jaws of one set to approach and thoseof the other to separate, at the same time permitting the jaws of eachset to close at any point within the limit of their traverse, so thatwhen one jaw of a set is intercepted by a pin 2 orstop-bar 4 the otherjaw will continuev in motion until brought into contact with the for thetime being stationary jaw.

The stop-bar 4 is guided to reciprocate parallel with the jaws and isfurnished with teeth to receive the end of a locking-bolt 23, the latterserving to hold the stop-bar after it has been brought to position byjaws 3 and while being acted upon by jaws 5.

One only of the pair of jaws 3 is projected into the plane of the pins 2when elevated, and in order that said jaw may be caused to advance firstduring the closing movement a spring 24 is connected to the lever of theopposite jaw, as through a lever and link 25.

The actuating-lever 18 derives its motions from the main actuating-lever390 of the diecase-centering mechanism, the connection being madethrough a link 26, crank-arm 27, rock-shaft 28, crank-arm 29, and anovel form of elastic coupling provided with a frictional checkingdevice for absorbing or neutralizing the reaction of the spring.

To the lever 18 is secured a crank-pin 30, preferably formed or providedwith a spherical bearing located between two bearingblocks 31 32.

The block 31 is screwed or otherwise secured in the end of a sleeve 33,thelatter provided with elongated transverse openings for the passage ofthe crank-pin 30 and surrounding the opposite bearing-block 32. To thecrank-arm 29 is pivotally attached one end of a sleeve 34, surroundingsleeve 33 and likewise provided with elongated transverse openings forcrank-pin 30. i

The end of sleeve 33 opposite its bearingblock 31 is closed, as by ascrew-plug 35, and the adjacent end of sleeve 34 is in like mannerclosed, as by a screw-cap 36.

Inclines or wedging-faces 37 are formed upon the bearing-block 32, and arod 38, secured to said block, extends longitudinally of the sleeve 33and is projected through open- One of ings in plug 35 and cap 36, saidrod being furnished with adjustable nuts or equivalent retaining meansengaging cap 36. Interposed between the interior surface of sleeve 33and the wedging or inclined faces of block 32 are wedge-blocks 39, andbetween a collar or washer 40,engaging the bases of said wedgeblocks andthe plug 35, is arranged a tensioning-spring 41. The function of thiscoupling is to permit of a slight degree of yield in the drivingconnections when the resistance of inertia is excessive and at the sametime check and delay the reactionary efiect incident to the release ofthe spring after compression.

Spring 41 is under initial tension and is adjusted to resist maximumworking pressures, so that under normal conditions it will hold theparts to working position without yielding. When, however, an abnormaldegree of resistance is encountered, the spring will yield slightly, itspressure being transmitted through the wedge-blocks and developing africtional resistance upon the surface of sleeve 33, so that when theresistance of the driven member diminishes the effective action orreaction of the compressed spring will in like manner be diminished asto its effect upon the driven member, a portion of the power stored upin the spring being expended and absorbed in overcoming the frictionalresistance to motion of the wedging-surfaces. By the arrangementdescribed this yielding under excessive resistance and dampening thespring during expansion are made effective during the motions of thelever 18 in either directionthat is, during the closing movements ofboth sets of jaws 3 and 5. Thus when the driving crank-arm 29 is movedto the right, Fig. 4:, its motion is transmitted through sleeve 34 androd 38 to the bearing-block 32 and from the latter to bearing-block 31and lever 18 through wedge-blocks 39, sleeve 33, and spring 41. In theevent excessive resistance to the movement of lever 18 is encounteredspring 41 yields slightly and in so doing increases its pressure uponthe wedge-blocks and the friction between the bearing-block 31 andsleeve 33. The excessive resistance to the motion of lever 18 havingbeen reduced or overcome, the tendency of the spring to expand suddenlyand drive the lever 18 forward is checked and its power diminished byreason of the fact that it is compelled to act through the wedging orfrictional devices during expansion. When the crank-arm 29 moves to theleft, its motion is transmitted to the bearing-block 31 through sleeves33 and 34:, spring 11, and wedges 39, and should the resistanceencountered be excessive the spring will yield, so as to permit thewedgeblocks to slide upon the inner face of sleeve 33, and in expandingthe spring must first overcome the frictional resistance as developed bythe wedges before its stored energy Locking-bolt 23 receives motion fromthe actuating-lever 58 of the centering pin or plunger through link 42and lever 43, the latter engaging shoulders on the locking-bolt. Thislever 43 is fast on a shaft 14, carrying an arm 45, to which is attachedthe rod 393 for operating the locking-bolts of the diecase-centeringmechanism, so that both sets of locking-bolts will operate in unison.

The mechanism illustrated represents an adaptation of the invention to aform of machine wherein. the adjusting-wedges have a limited range ofmotion divided into equal periods representing successive increments ofspace value, and provision is made whereby the number of periods isincreased from fifteen to eighteen. It is obvious, however, that anydesired number of periods may be provided for and'theunitsoorrespondingly diminished, that the throw of the wedge can beincreased, and that the space value of successive periods can be variedat will by a proper rearrangement of the stop-pins 2 to correspond withthe succession of adjustments desired. 7

In adapting the improvements described to the machine of the priorpatent the only ad ditional changes required are an increase in thenumber of ports and ducts forming part of the control system and theaddition of a space-measuring perforation to each typedesignatingperforation or set of perforations in the record-strip, so that as thelatter passes through the paper-feed pressure will be admitted to thedie-case-centering mechanism, as heretofore, to center the matrix, andat the same time pressure will be admitted to the cylinder 10 of the pin2, representing the assigned space value of the type, and thus the moldwill be adjusted to suit the character or the justification-wedges set,as required.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a type-casting machine such as described provided withdie-case-centering mechanism controlled from a record-strip and anadjustable mold, the combination with the mold adjusting or dimensioningdevices of an independent control mechanism therefor governed by therecord-strip and comprising a primary controller, primary positioningmechanism, a secondary controller and secondary positioning devices, thelatter operating upon the mold-adjusting devices, to dimension the mold.

IIO

2. In a type-casting machine such as described, the combination withmeans for positioning the movable member of the mold, of a shiftingmechanism therefor independent of the die-case-centering mechanism andcomprising serially-disposed stop-pins controlled &

directly from the record-strip, a pair of oppositely-movable jaws, astop-bar controlled as to position by said jaws, and a second pair ofoppositely movable jaws engaging the stop-pin and operating to shift themold-positioning devices.

8. In a type-casting machine such as described, the combination withmeans for dimensioning the mold, such as a normal wedge, of a pair ofoppositely-movable jaws independent of the die-case-centerihg mechanism,and an adjusting or positioning mechanism therefor controlled from therecord-strip.

4- In a type-casting machine such as described, the combination with thenormal and justification wedges thereof, of a pair of oppositely-movablejaws for positioning said wedges and a control system for said jawsindependent of the die-case-centering mechanism and adapted to begoverned in its action from the record-strip.

5. In a casting-machine such as described, the combination with theoppositely-recipro catory primary and secondary positioning mechanismsand the actuating member therefor, of a double-acting combined elasticand frictional coupling.

6. A double-acting frictional and elastic driving-coupling for thecontrol mechanism of mold-adjusting devices such as described,comprising the following elements, in combination, to wit, a bearing onthe driven memher; a frame or casing provided with a fixed bearing-blockand a movable bearing-block oppositely disposed relatively to andengaging the bearing of the driven member; wedgeblocks interposedbetween the movable bearing and its frame or casing; a spring interposed between said wedge-blocks and the casing or frame; a drivingmember provided with means for engaging said casing or frame, to move itin one direction; and a rod connected to the movable bearing-block, saidrod engaging the driving means when moved in a direction opposite tothat first mentioned.

7. The combination, to form a double-acting driving-coupling, such asdescribed, for the adjusting or positioning mechanism of type'castingmachines, of the following elements, to wit; a pin on the driven member;a tubular member provided with a bearingblock engaging said pin; anoppositely-disposed bearing-block also engaging the pin, supported toreciprocate within the tubular member and provided with inclines and aconnecting-rod extending longitudinally of said tubular member; wedgeblocks interposed between said movable bearing-block and the tubularmember; a spring interposed between said wedge-blocks and said tubularmember; and an actuating device coupled to the driving member andinterposed between the tubular member and a shoulder on saidconnecting-rod.

8. In adouble-acting driving-coupling such as described, for theadjusting or positioning mechanism of type-casting machines, thecombination of the following elements, to wit; a pin on the drivenmember; a sleeve extending transversely of said pin, closed at one endand provided with a bearing-block at the oppositeend; a secondbearing-block supported to reciprocate within the sleeve and engagingthe pin, said block being provided witha rod extending longitudinallythrough the sleeve and beyond the closed end thereof; wedgeblocksinterposed between the inner surface of the sleeve and the movablebearing-block therein; a spring interposed between the wedge-blocks andthe closed end of the sleeve; an outer casing coupled at one end of thedriving member and provided at the opposite end with a head or crosspiece engaging one end of the sleeve and with a passage for the rod; anda nut or shoulder on said rod outside the head or cross piece of saidcasing.

JOHN SELLERS BANCROFT.

Witnesses:

MORTIMER A. J ONES, JOSEPH B. CHURCH.

